Let’s get one thing straight: you don’t need to spend a fortune to eat enough protein. Flashy supplement ads and influencer meal plans would have you believe otherwise — stacks of premium supplements, grass-fed everything, organic this and free-range that. It’s their job to sell you that stuff. It doesn’t mean you need it.
The reality is that some of the best protein sources for building muscle are also among the cheapest foods in any supermarket. You just need to know where to look.
Here’s the definitive list of budget-friendly, protein-packed foods — what you get from each one, what it costs per gram of protein, and why it belongs in your shopping cart.
1. Eggs
Of course eggs are first. They’re the gold standard of protein foods — and not just because of their biological value (which, at 100, is the benchmark against which all other protein sources are measured).
Related: Everything You Need to Know About Eggs and Egg Protein
One whole egg contains 6 grams of protein, all the essential amino acids your body needs to build and repair muscle, healthy fats, choline for cell production, and a stack of vitamins and minerals. And before you start separating yolks — don’t. The yolk contains half the protein and most of the nutrients. Throwing it away is throwing money and nutrition in the bin simultaneously.
A dozen eggs currently averages around $2.20–$4.00 depending on your location and egg type — that’s 72 grams of protein for a few dollars. Hard to beat.
Protein per serving: 6g per egg | Cost per gram of protein: $0.03–0.05
2. Canned Tuna
The bodybuilder’s staple for decades, and for good reason. A single can of tuna contains 20–40 grams of protein depending on size, with virtually no fat and almost zero carbohydrates. It’s also rich in vitamins A, B12 and niacin, plus minerals including selenium, phosphorus and magnesium.
One practical tip: buy tuna packed in brine or spring water rather than oil or sauce. The oil-packed versions add unnecessary calories and the sauce versions often add sugar. Keep it simple.
One caveat worth mentioning — tuna contains mercury, and eating it every single day in large quantities isn’t advisable. Alternate it with other fish sources like cod or canned salmon to keep variety in your diet and mercury levels sensible.
Protein per serving: 22g per 3oz | Cost per gram of protein: $0.04–0.05
3. Chicken Breast
The classic. There’s a reason every bodybuilder’s freezer looks like a chicken graveyard — 27 grams of protein per 3oz serving with only 3 grams of fat makes chicken breast one of the most protein-efficient foods on the planet.
Buy in bulk and the price drops significantly. Batch cook on Sundays and you’ve got high-protein meals sorted for the week without having to think about it.
Protein per serving: 27g per 3oz | Cost per gram of protein: $0.04–0.06
4. Cottage Cheese
Criminally underrated. Cottage cheese delivers 28 grams of protein per cup — more than chicken breast gram for gram — along with probiotics for gut health and calcium for bone strength. It’s also predominantly casein protein, meaning it digests slowly and keeps amino acids trickling into your bloodstream for hours. Ideal before bed.
It works with pretty much anything: fruit, leafy vegetables, on toast, or straight from the tub if you’re not feeling fancy. One tip: always buy the large tub rather than single-serve portions — the same cottage cheese costs roughly double per gram of protein in individual containers.
Protein per serving: 13–28g per cup | Cost per gram of protein: $0.04–0.06
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5. Greek Yogurt
The king of yogurts. Greek yogurt contains roughly double the protein of regular yogurt — around 15–23 grams per serving depending on brand — because it’s strained to remove excess liquid, concentrating both the protein and the flavor.
Go for plain, unsweetened varieties. The flavored versions often pack in enough sugar to undermine the whole point. And like cottage cheese, buy the 32oz tub rather than individual pots — single-serve Greek yogurts cost two to three times more per gram of protein than the same yogurt from a larger container.
Protein per serving: 15–23g per cup | Cost per gram of protein: $0.05–0.07 (large tub)
6. Milk
Eight to ten grams of protein per 250ml glass doesn’t sound spectacular until you remember that milk contains both whey and casein — the same proteins found in the supplements you’re paying a premium for, just in their natural form. Post-workout dairy consumption has been shown in multiple studies to support muscle recovery and growth.
If you’re struggling to gain weight, milk is one of the most calorie-efficient ways to add quality calories. And at around $0.03–0.04 per gram of protein, it’s one of the cheapest protein sources on this entire list.
Protein per serving: 8–10g per 250ml | Cost per gram of protein: $0.03–0.04
7. Lean Ground Beef
Ground beef gets a bad reputation from people who buy the fatty versions and wonder why their body composition isn’t improving. Buy lean — 80% lean content or higher — and you’re looking at 22–25 grams of protein per 3–4oz serving alongside meaningful amounts of iron, zinc, and natural creatine.
The iron and zinc accelerate muscle building and recovery. The creatine — the same compound people pay good money for in supplement form — reduces fatigue and improves workout performance.
Worth noting: beef prices have risen significantly in 2026 and are predicted to increase further, making ground beef one of the more expensive protein sources on this list compared to a few years ago. It’s still worth including for its nutritional profile, but eggs, tuna, and chicken will give you more protein per dollar right now.
Pro tip: rinse cooked lean ground beef with warm water to reduce the fat content by up to 50% without losing any protein.
Protein per serving: 22–25g per 3–4oz | Cost per gram of protein: $0.08–0.11 (80/20), $0.09–0.12 (90%+ lean)
8. Turkey
White turkey meat is arguably the leanest animal protein source you can find. Turkey breast (skinless, boneless) delivers 26 grams of protein and just 1 gram of fat per 3oz serving. Even regular turkey comes in at 21 grams of protein and 8 grams of fat per 3.5oz — still an excellent ratio.
A pound of turkey costs less than $4 on average, making it one of the best value protein sources in the meat section. Skin adds saturated fat without meaningful protein, so trim it off.
Protein per serving: 21–26g per 3–3.5oz | Cost per gram of protein: $0.07–0.09
9. Canned Salmon and Cod
Tuna gets all the attention but alternating with other canned fish gives you variety and keeps mercury intake in check. Canned pink salmon offers 20 grams of protein and 4 grams of fat per 3oz serving, with the bonus of omega-3 fatty acids — the same anti-inflammatory fats sold as fish oil supplements.
Cod is another solid option: 17 grams of protein and just 1 gram of fat per 3.5oz fillet, at a price comparable to tuna.
Omega-3 fatty acids matter more than most people realize when building muscle. They reduce inflammation, improve blood flow to muscles, and accelerate recovery — meaning less soreness and better performance in your next session.
Protein per serving: 17–20g per 3oz | Cost per gram of protein: $0.08–0.10
10. Sardines
Sardines are packed — literally and figuratively. A single can contains around 23 grams of protein, a solid hit of omega-3 fatty acids, and one of the lowest mercury levels of any canned fish (being small, they don’t bioaccumulate toxins the way larger species do). Buy in bulk and you’re getting one of the highest protein-per-dollar foods available anywhere.
If the taste is putting you off, try them on wholegrain toast with mustard or hot sauce. You’ll get used to it — and your muscles will thank you.
Protein per serving: 23g per can | Cost per gram of protein: $0.06–0.08
11. Sirloin Steak
A leaner cut than most people assume, sirloin steak delivers 23 grams of protein per 3oz serving alongside niacin and vitamin B — and it’s considerably cheaper than the premium cuts. Trim the visible fat before cooking and you’ve got a genuinely lean, high-protein meal.
Protein per serving: 23g per 3oz | Cost per gram of protein: $0.10–0.14
12. Beans and Lentils
The budget bodybuilder’s secret weapon — and the cheapest protein source on this entire list. Dried lentils and beans cost as little as $0.02–0.03 per gram of protein, which is extraordinary value. A one-pound bag of dried lentils runs $1–2 and contains roughly 100 grams of protein. That’s pennies per gram, and it’s hard to beat anywhere in the grocery store.
The one limitation of beans as a protein source is their amino acid profile — they’re not complete proteins on their own. Combine them with grains (rice and beans is the classic combination) and you get a complete amino acid profile that covers everything your muscles need.
Protein per serving: 15–18g per cup | Cost per gram of protein: $0.02–0.03 (dried), $0.08–0.10 (canned)
Related: Fiber and Weight Loss
13. Soy and Edamame
Soy is the most complete plant-based protein available, and one of the few plant sources that contains all nine essential amino acids. A 3oz serving of soybeans contains 33 grams of protein — more per serving than most animal sources.
Edamame (young soybeans) delivers around 18 grams of protein per cup and can be found frozen in most supermarkets. It also contains mono and polyunsaturated fats that support heart health and help absorb fat-soluble vitamins.
Some studies suggest soy protein can enhance the body’s anabolic response when added to protein shakes — useful to know if you’re plant-based or just looking to diversify.
Protein per serving: 18–33g depending on form | Cost per gram of protein: $0.06–0.08
14. Quinoa
Every other grain on the market is an incomplete protein. Quinoa is the exception — it contains all nine essential amino acids, making it a complete protein source and the most protein-rich grain you can buy.
Eight grams of protein per cup doesn’t sound like much compared to meat, but as a carbohydrate base for your meals it’s streets ahead of rice or pasta from a protein standpoint. Buy it plain in bulk and flavor it yourself — generic brands are just as good as premium ones and cost a fraction of the price.
Protein per serving: 8g per cup | Cost per gram of protein: $0.08–0.12
15. Almonds and Sunflower Seeds
Nuts and seeds aren’t the most efficient protein sources calorie-for-calorie — almonds contain 20 grams of protein per cup but come with significant fat alongside it. That said, they’re portable, require zero preparation, and make a genuinely useful high-protein snack when you’re on the move.
Use them as snacks and meal additions rather than primary protein sources, and they earn their place on this list. Just don’t make them your main protein strategy — at $0.15–0.17 per gram of protein, almonds are among the most expensive options here.
Protein per serving: 6g per oz (sunflower seeds), 20g per cup (almonds) | Cost per gram of protein: $0.09–0.12 (sunflower seeds), $0.15–0.17 (almonds)
Bonus: Protein Supplements on a Budget
If you want to top up your protein without spending big, whey protein concentrate is the most cost-effective supplement option available. At around $0.04–0.05 per gram of protein when bought in bulk 5lb bags, it’s competitive with chicken breast and canned tuna — and far more convenient. For less than a dollar per serving you get 20–25 grams of easily digested, high-quality protein.
If budget is tight, casein protein is worth considering for nighttime use — it digests slowly and provides a sustained release of amino acids while you sleep, which is particularly useful when you’re trying to preserve muscle on a restricted diet.
It might take some trial and error to find the brand that works for you, but when whole food alone isn’t getting you to your daily protein target, a basic whey concentrate is the most sensible, budget-friendly solution.
The Bottom Line
Building muscle on a budget is entirely achievable — it just requires knowing which foods give you the most protein per dollar spent. Eggs, milk, canned tuna, cottage cheese, and dried beans and lentils are your best value options, all coming in at under $0.06 per gram of protein. Lean meats and fish are excellent but cost more. Nuts and seeds are convenient but expensive as a primary protein source.
Buy smart, buy in bulk, buy the big tub instead of the single-serve pot — and remember that the most expensive protein isn’t always the best one. Popeye built his muscles on spinach, after all.
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